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 Lightning Force Close Detected in Block 839512 between River Financial 1 and 
29K sats to force close a 17M sats channel 🤮
https://mempool.space/tx/f5fad83c8a4fa7a11a80df4aa8a322835b949e340167f3254f8a0724e10fb170 
  - Let x = 0.1937 + -0.19368. Let u be 3/(24/(-4))*-5. Which is the third biggest value?  (a) x  (b) u  (c) -0.1
A: c